Design and Synthesis of Multilevel Structured Co3O4 Double-shell Dodecahedron as Non-enzymatic Electrochemical Sensor for H2O2 Detection
In this work, we use ZIF-67 as a template to prepare multilevel structured Co3O4 with a high surface area. The synthesized materials are characterized by SEM, TEM, XRD, and N2 physisorption. The double-shell dodecahedron multilevel structure of Co3O4 (DS Co3O4) has the most favorable morphology and...
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| Format: | Article |
| Language: | English |
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The Electrochemical Society of Japan
2024-11-01
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| Series: | Electrochemistry |
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| Online Access: | https://www.jstage.jst.go.jp/article/electrochemistry/92/11/92_24-00087/_html/-char/en |
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| author | Zhixuan ZHANG Zhiqi LIANG Meishi HUANG Dong SHEN Zufei HU Yang YANG Zhouling WU |
| author_facet | Zhixuan ZHANG Zhiqi LIANG Meishi HUANG Dong SHEN Zufei HU Yang YANG Zhouling WU |
| author_sort | Zhixuan ZHANG |
| collection | DOAJ |
| description | In this work, we use ZIF-67 as a template to prepare multilevel structured Co3O4 with a high surface area. The synthesized materials are characterized by SEM, TEM, XRD, and N2 physisorption. The double-shell dodecahedron multilevel structure of Co3O4 (DS Co3O4) has the most favorable morphology and largest specific surface area, and is demonstrated to be an effective electrochemical non-enzymatic H2O2 sensor. The efficiency arises from the unique multilevel structure of DS Co3O4, providing abundant active sites for H2O2 oxidation. The sensor demonstrates a rapid response time of 5 seconds, high sensitivity of 1168.9 µA mM−1 cm−2 (µA (mmol L−1)−1 cm−2), and a limit of detection of 0.048 µM (µmol L−1, S/N = 3) within a linear range of 0.0005 to 10 mM. These values are significantly superior to those of other high performance Co3O4-based H2O2 sensors. The as-fabricated DS Co3O4 sensors exhibit excellent sensitivity, selectivity, and long-term stability, making them highly promising sensors materials for H2O2 detection. |
| format | Article |
| id | doaj-art-a8f360a582c1400e9e1c5eba8733cb9d |
| institution | OA Journals |
| issn | 2186-2451 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | The Electrochemical Society of Japan |
| record_format | Article |
| series | Electrochemistry |
| spelling | doaj-art-a8f360a582c1400e9e1c5eba8733cb9d2025-08-20T01:53:30ZengThe Electrochemical Society of JapanElectrochemistry2186-24512024-11-01921111700311700310.5796/electrochemistry.24-00087electrochemistryDesign and Synthesis of Multilevel Structured Co3O4 Double-shell Dodecahedron as Non-enzymatic Electrochemical Sensor for H2O2 DetectionZhixuan ZHANG0Zhiqi LIANG1Meishi HUANG2Dong SHEN3Zufei HU4Yang YANG5Zhouling WU6https://orcid.org/0000-0003-2841-4486School of Public Health, Zunyi Medical UniversitySchool of Public Health, Zunyi Medical UniversitySchool of Public Health, Zunyi Medical UniversitySchool of Public Health, Zunyi Medical UniversitySchool of Public Health, Zunyi Medical UniversitySchool of Public Health, Zunyi Medical UniversitySchool of Public Health, Zunyi Medical UniversityIn this work, we use ZIF-67 as a template to prepare multilevel structured Co3O4 with a high surface area. The synthesized materials are characterized by SEM, TEM, XRD, and N2 physisorption. The double-shell dodecahedron multilevel structure of Co3O4 (DS Co3O4) has the most favorable morphology and largest specific surface area, and is demonstrated to be an effective electrochemical non-enzymatic H2O2 sensor. The efficiency arises from the unique multilevel structure of DS Co3O4, providing abundant active sites for H2O2 oxidation. The sensor demonstrates a rapid response time of 5 seconds, high sensitivity of 1168.9 µA mM−1 cm−2 (µA (mmol L−1)−1 cm−2), and a limit of detection of 0.048 µM (µmol L−1, S/N = 3) within a linear range of 0.0005 to 10 mM. These values are significantly superior to those of other high performance Co3O4-based H2O2 sensors. The as-fabricated DS Co3O4 sensors exhibit excellent sensitivity, selectivity, and long-term stability, making them highly promising sensors materials for H2O2 detection.https://www.jstage.jst.go.jp/article/electrochemistry/92/11/92_24-00087/_html/-char/enco3o4multilevel structuredelectrochemical sensorh2o2 |
| spellingShingle | Zhixuan ZHANG Zhiqi LIANG Meishi HUANG Dong SHEN Zufei HU Yang YANG Zhouling WU Design and Synthesis of Multilevel Structured Co3O4 Double-shell Dodecahedron as Non-enzymatic Electrochemical Sensor for H2O2 Detection Electrochemistry co3o4 multilevel structured electrochemical sensor h2o2 |
| title | Design and Synthesis of Multilevel Structured Co3O4 Double-shell Dodecahedron as Non-enzymatic Electrochemical Sensor for H2O2 Detection |
| title_full | Design and Synthesis of Multilevel Structured Co3O4 Double-shell Dodecahedron as Non-enzymatic Electrochemical Sensor for H2O2 Detection |
| title_fullStr | Design and Synthesis of Multilevel Structured Co3O4 Double-shell Dodecahedron as Non-enzymatic Electrochemical Sensor for H2O2 Detection |
| title_full_unstemmed | Design and Synthesis of Multilevel Structured Co3O4 Double-shell Dodecahedron as Non-enzymatic Electrochemical Sensor for H2O2 Detection |
| title_short | Design and Synthesis of Multilevel Structured Co3O4 Double-shell Dodecahedron as Non-enzymatic Electrochemical Sensor for H2O2 Detection |
| title_sort | design and synthesis of multilevel structured co3o4 double shell dodecahedron as non enzymatic electrochemical sensor for h2o2 detection |
| topic | co3o4 multilevel structured electrochemical sensor h2o2 |
| url | https://www.jstage.jst.go.jp/article/electrochemistry/92/11/92_24-00087/_html/-char/en |
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